For complements, cross price elasticity of demand is: a. Positive b. Negative c. between zero and one only d. zero.

b. Negative

Explanation:

The cross-price elasticity of demand refers to how the demand for a good should respond when the price of that good changes.

In this, the substitutes and the complementary goods are considered

In the case of substitutes goods, it shows a positive relationship between the demand and the price of a good. So, the cross-price elasticity of demand is positive

Whereas in the case of the complementary goods, it shows an inverse relationship between the demand and the price of a good. So, the cross-price elasticity of demand is negative